Improvement in reversible combination-locks



sheets-sheen. H. GOODRICH & F. J. CHAPMAN.

REVERSIBLE COMBINATION LocII. No. 188,890. Patented March 27,1877.

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SSheets-Sheet 2. II. GOODRICH & F. J. CHAPMAN.

REVERSIBLE COMBINATION LOCK.

Patented March 27,1877.

NJETERS, FHOTU-LITHOGRAPHER, WASHINGYON- D C.

. BSheets-Sheet 3. H. GOODRICH & F. J. CHAPMAN.

REVERSIBLE COMBINATION LOCK.

No. 188,890. Patented March 27,1877.

ITNESS S VIVPETERS. PHOTO-LITHOGRAPHER. WASHXNGTON, D C

HANSON` GOODRICH, AND FRIEND J.

CHAPMAN, OF MCLEANSBQROUGH,

ILLINOIS, ASSIGNORS 'IO ITEIEMSELVES AND WILLIAM B. GARNER, 0F

SAME PLAGE.

IMPROVEMENT IN REVERSIBLE COMBINATION-LOCKS.

Speciiication forming par-t of Lettere Patent No. 188,890, dated March 27, 1877; application tiled February 1o, 1877.

hereby declare that the following is a full,

clear, and exact description of the construction and operation of the same, reference being had to the annexed. drawings, making a l partv of this specification,l andl to the letters and gures of reference marked thereon'.

Figure I of the drawings is a representation of a plan view of our lock with the coveringplate removed, and Fig. 2 is a transverse vertical sectional'viewthereof.y Figs. 3, 4, 5, 6, 7, 8, 9, l0. andl l1 are detail views thereof.

This invention is an improvement upon the' device secured to F. J Chapman by Letters Patent, dated October 19, 1875.

, The nature of said invention consists, first, i-n providing each end' of a door-lock casing or plate with an opening for a bolt to play. through, and combining with said casing a detachable plate, which is adapted to close either ot' said openings.

It"also consists in journaling in said detachable plate a rotating or oscillating locking-cam, adapted to prevent the retraction of said bolt by bearing` against the, rear end thereof.

1t also consists in combining with the spindle of a door-knob a notched oscillating tumbler and a series of notchediandcnrveeslotted .combination-wheels.

It consists, nally, in certain additional novel devices, hereinafter particularly described.

In the annexed drawings, A designates an ordinary lock-plate or metallic casing for a door-lock, the same being secured to a door, A'. Each end of said casingis provided, between the middle and the top thereof, with an opening, a, which has V-shaped grooves a! in its top and bottom. B is a detachable metal plate, provided with V-shaped ridges b on its top and bottom, corresponding to said grooves a. Said plate B is adapted to close either of to the other the said casing is fitted for use f with a left or a right holt, as the case may be. In said plate B is journaled a short shaft, G, carrying inside of said casing a cam-faced rotating or oscillating block, U. Said shaft G g is provided with a handle, c, and also with a spring, c', arranged between said handle and casing A, and serving to keep said shaft C and block C' in place.

D designates a bolt, provided with a broad strong outer end, d, which plays through either opening a, (said bolt being reversible,) a tapering middle part, dl, which is curved to conform to the shape ofthe tumbler and combination-wheels, hereinafter described, and a diininished rear end, d2, which is slightly heveled to engage with the cam C', above referred to. When said bolt is shot the turning of block or cain C in one direction prevents said l holt from being retracted. Turning it in the other direction frees said bolt therefrom. The under side of the middle part d1 of said bolt is provided with a transverse rib or fence, D', `and the upper side of said bolt is provided with a longitudinal groove, (shown in Fig. 2,) which receives the middle part of a dat spring, E, when the latter is depressed. The ends of said spring are turned downward and bear against small blocks e e on the inside of the `ends of casing A. F designates acam, pivot- ;ed in an opening, f, in the top of casing A, and provided with a handle, F', whereby it may he turned down to prevent bolt D from rising out of engagement with the tumbler and combination wheels or disks, hereinafter' described. The office of spring E is to hold up said cam when said bolt is being used as a latch. It readily yields, however, when manual force is applied to handle F. G designates a spring, attached at one end to a stud, g, on the inside of casing A, and bearing at the other end against a lug on the bottom of the front part of said bolt. Its operation is similar to that of an ordinary latchspring.

In the accompanying drawing, Fig. 2, H designates a prismatic door-knob spindle, having a knob,I, at each end, and passing through said openings, and by transferring it from one door A' and casing A. J, Fig. 5, designates a detachable plate, which consists of au inner disk,j, fitting upon said spindle, and aaring outer extension, j', having a curved or segmental ed ge, j. This detachable plate or arm J turns with said spindle inside of a skeleton tumbler, K, Fig. 4, which is pivoted atits bottom to thefside of said casing, and communicates oscillating motion to said tumbler. The top of said tumbler is provided with a notch or recess, k, which is beveled ou one side at k', so as to cause rib or fence D and bolt D to rise when said bevel engages with said rib.

Detachable plate or arm J is provided with a stud, 7'3, on its outer face, which gives motion to a compound wheel consisting of an inner cogged segment, L', Fig. 9, and an internally-geared rim, L, Fig. 7, which fits upon said segment. When said parts L L' are secured together by engaging their cogs and intervening recesses a curved passage or slot is formed, in which said stud j3 plays. Said com'- pound wheel LL' does not turn until said stud has reached one or the other ofthe ends of said curved slot or passage. It will then turn with arm or plate J. A lixed anti-friction ring, M, Fig. 10, is interposed between said compound wheel and tumbler K.

Figs. 8 and 11 represent, respectively, two wheels or disks, N and O, provided with slots or channels n and o, which are concentric with their respective peripheries. In channel or slot n works a stud, Z, on the outside of segment L', and in channel or slot o works a similar stud, n', on the outside of disk N. These combination -wheels, L, N, and O, are each provided with a similar recess, p, and these three recesses must be brought to register with the notch in the tumbler already described before rib D' can fall into them, so that the door-knob spindle El can operate the bolt D to withdraw the same. The number of said combination-wheels may be increased or diminished, and they may all be made in one piece each, like N and 0, or in two pieces, like L L', or some in one piece and some in two pieces. Fixed smooth annular rings M1, M2, &c., similar to ring M, already described, alternate with said combination wheels or disks. Said rings M, M1, M2, &c., are secured in place by means of perforated opposite lugs m m, through which pass studs or pins xed to said casing A.

When rib or fence D' rests in the notches or recesses of said wheels or disks and said tumbler, as described, the said bolt D is operated, like the latch-bolt of an ordinary door, by turning either one of the door-knobs above described. The cam C' enables the said bolt to be eectually locked from the inside, even when the combination-wheels and tumbler are set to open it.

P designates a fixed annular indicating plate or ring, suitably graduated, and secured to the outside of the door; and Q designates a second graduated indicatingplate, turning with the door-knob spindle within said ring. When these plates indicate the proper combination the bolt, if not locked by cam C', may be withdrawn into said casing A. All of the foregoing parts will operate equally well in case said bolt D is reversed. The curved slots or channels in the several combination-wheels may be of different lengths. More than one of said slots or channels may be made in the same wheel.

What we claim as new, and desire to secure by Letters Patent, is- Y l. In combination with reversible bolt D, provided with recessed portion d', spring E, interposed between the bolt and cam F, substantially as described, and for the purpose set forth.

2. The combination of cam-faced block O', shaft C, and handle c with latch-bolt D, substantially as set forth.

3. Thecombination of detachable plate B with casing A, having an opening at each end, and with a lockingcam journaled in said plate, whereby said cam is adapted to be used with a reversible bolt, substantially as set forth.

4. The combination of recessed oscillating tumbler with one or more recessed combination-wheels and a reversible bolt, having a rib which enters such recesses only when they all coincide, substantially as set forth.

In testimony that we claim the above we have hereunto subscribed our names in the presence of two witnesses.

HANSON GOODRIOH. FRIEND J. CHAPMAN.

Witnesses:

W. F. HALL, M. M. SIMS. 

